Sony ZS-2000 (serv.man2) Service Manual ▷ View online
Note on Schematic Diagram:
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
no mark : FM
6-17. SCHEMATIC DIAGRAMS — DISPLAY SECTION — • Refer to page 29 for Note.
– 51 –
– 52 –
ZS-2000
(Page 47)
(Page 43)
(Page 55)
POWER BOARD
H/P BOARD
REG BOARD
1-676-085-
T901
R901
1-677-451-
1-168-897-
04
6
MAIN BOARD
CNP304
7
MAIN BOARD
CNP301
8
MAIN BOARD
CNP305
AC IN
i
J401
1
A
B
C
D
E
F
G
H
I
J
2
3
4
5
6
7
8
9
10
11
12
13
(21)
21
(11)
11
(21)
21
: NOT REPLACEABLE :
BUILT IN TRANSFORMER.
L901
13
FL BOARD
CNP501
14
TU BOARD
(GND)
C307
PS901
D901
E-6
D902
D-6
D903
D-6
D904
C-6
D905
A-9
D906
E-5
D907
E-6
D910
F-3
D911
F-4
D912
F-2
D913
F-4
IC307
H-5
IC308
J-7
• Semiconductor
Location
Ref. No.
Location
6-18. PRINTED WIRING BOARDS — POWER SUPPLY SECTION — • Refer to page 22 for Circuit Boards Location.
• Refer to page 29 for Note.
ZS-2000
– 53 –
– 54 –
(Page 41)
(Page 41)
(Page 42)
(Page 29)
(Page 49)
– 55 –
6-19. SCHEMATIC DIAGRAMS — POWER SUPPLY SECTION — • Refer to page 29 for Note.
Note on Schematic Diagram:
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
no mark : FM
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
(Page 44)
(Page 44)
(Page 44)
(Page 32)
(Page 52)
– 56 –
• IC BLOCK DIAGRAM
12
11
10
9
8
7
6
5
4
3
2
1
13
14
15
16
17
20
21
UNLOCK
DETECTOR
POWER ON
RESET
UNIVERSAL
COUNTER
CCB
I/F
NC
CE
DI
CL
DO
XOUT
22 NC
AOUT
XIN
AIN
PD
VSS
VDD
B04
FMIN
AMIN
B01
B02
B03
I01
I02
IFIN
PHASE
DETECTOR
CHARGE
PUMP
REFERENCE
DIVIDER
SWALLOW
COUNTER
1/16,1/17
4BITS
12BITS
PROGRAMMABLE
DIVIDER
DATA SHIFT REGISTER
LATCH
1/2
18
19
1
2
3
4
5
6
7 8
9
OUTPUT2
Vcc
GND
GND
NC
INPUT2
INPUT1
NC
MOTOR
DRIVE
MOTOR
DRIVE
REG
SWITCH
SWITCH
OUTPUT1
IC1 TA2149N
IC2 LC72137M-TLM
IC790 BA6418N
GND1
3
2
1
IF REQ
AM
MIX
FM RF-IN
AM LOW CUT
5
4
MIX OUT
VCC2
AF IF-IN
8
7
6
FM IF-IN
GND2
10
9
AGC
QUAD
12
11
R-OUT
L-OUT
FM RF-OUT
22
23
24
20
21
17
18
19
15
16
13
14
AM RF-IN
VCC1
FM OSC
ST-IND
OSC-OUT
AM OSC
IF-OUT
LPF2/MO-ST
MPX- IN
DET-OUT
LPF1/BAND
FM
MIX
FM
OSC
LEVEL
DET
AM
DET
MUTE
FM
DET
ST/MO
FM/AM
AM
OSC
AGC
SW
ST
1/8
BUFF
BUFF
DIVIDE
DECODE
VCO
IF BUFF
AF BUFF
AF
FM RF
AM IF
FM IF
1/1 OR
1/16
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